solar payback period7 min readSolar Payback Period in India 2026: How Long Does Rooftop Solar Take to Pay Back in UP?
In Lucknow and across UP, a 3 kW rooftop solar system after the PM Surya Ghar subsidy typically pays back in 4 to 5 years - and then generates free electricity for the next 20 years. This guide explains exactly how to calculate your payback period, what shortens or lengthens it, and what the net numbers look like for homes and small businesses in UP in 2026.

Ravi Sharma
October 2026

















